Display device.



A. ARNSDORFF.

DISPLAY DEVICE APPLICATION FILED 11111.15; 1910,

Patented Mar. 8, 1910.

[NVE/VTOR if! T IVES SE5 JULIUS A. ARNSDORFF, F KNOX, INDIANA.

DISPLAY DEVICE.

Specification of Letters Eatent.

Patented Mar. 8, 1910.

Application filed January 15, 1910. Serial No. 538,275.

1 To all whom it may concern:

Be it known that I, JULIUS A. Anna DORFF, citizen of the United States,residing at Knox, in the county of Stark and State of Indiana, haveinvented new and useful Improvements in Display Devices, of which thefollowing is a specification.

My invention has to do with the handling and display of linoleums, oilcloths and the like; and it has for its object to provide a device ofroller character embodying such a construction that a piece of materialmay be expeditiously and easily rolled on or off of the device, and whendesired the device with the material that is rolled thereon may beconveniently rolled over a floor or other surface without liability ofthe material being fed off of the device or disarranged in any manner.

The invention will be best understood by reference to the followingdescription when taken in connection with the accompanying illustrationof one specific embodiment thereof, while its scope will be moreparticularly pointed out in the appended claims.

In the drawings which are hereby made a part hereof: Figure 1 is aperspective view showing my novel device as hearing a roll of materialand as arranged to prevent rotation of its traveling wheels, so that thepiece of material may be drawn from the device without movement of thesame from the position in which it is placed. Fig. 2 is a longitudinalvertical section of the same. Fig. 3 is a transverse section taken inthe plane indicated by the line 33 of Fig. 2 and showing one of thedetents in the position in which it is placed to fix its respectivewheel to the central shaft so as to adapt the wheel to freely turn overa floor or other surface and with the shaft, and: Fig. & is a detailsection taken at a right angle to Fig. 3 and illustrating the manner inwhich each detent is locked to its respective wheel when it is in theposition shown in Fig. 1, relative to said wheel.

Similar letters designate corresponding parts in all of the views of thedrawings, referring to which:

A is the shaft of the device which is preferably, though notnecessarily, tubular. One end a of the said shaft is of angular form incross-section for the application of a crank (not shown) which may beused in turning the shaft in the wheels, presently described,

for the purpose of winding linoleum, oil

cloth or other material on the shaft while the wheels are held againstturning on the supporting surface in the manner shown in Fig. 1. Nearits ends the shaft A is provided with circumferential grooves b, and isalso provided, at about the distance illustrated from said grooves, withradially disposed apertures c. It will further be understood byreference to Fig. 2 that the. shaft A is equipped with plates B,connected to it by screws d. The said plates B are used to clamp theinner end of the piece of material to be handled and displayed to theshaft so that when the shaft is turned in the wheels and independent ofthe same as before mentioned, the piece of material will be held to theshaft and will not be liable to pull away from the same.

For the purpose of holding the roll of material C in compact state onthe shaft and against casual uncoiling or loosening, I provide thespring clips D, one of which is placed on the roll adjacent each endthereof.

E E are the wheel of the device, which may be of any construction andmaterial compatible with the purpose of my invention. Each wheel isprovided with a flange 6, and in said flange bears a screw 7 whichextends into one circumferential groove 6 of the shaft and holds thewheel against movement in the direction of the length of the shaftwithout interfering with rotation of the shaft in the wheeli. 6.,independent of the same. Each wheel is also provided in its flange 6with a radially disposed aperture 9 adapted to register with oneaperture 0 of the shaft, and each wheel is further pro vided with asegmental rack, Figs. 1, 3 and 4, which rack is provided at 71. with atooth of the form best shown in Fig. 4. I prefer to form the saidsegmental rack in the out wardly extended portion of the rim i of eachwheel as shown.

F F are the detents of the device, and Gr G are the springs forcooperating with said detents. There is one detent F and one spring G oneach wheel, and inasmuch as both detents are identical in constructionand both springs are similar, a detailed description of the detent andspring shown at the left of Fig. 1 and in Fig. 3, will sufice to imparta definite understanding of both detents and both springs. The detentmen tioned is pivoted at j to its respective wheel at the outer sidethereof and extends outward alongside the rack having the tooth h. At 70the detent is provided with a lateral projection, and at Z it isprovided with a lateral arm having a toe m, designed to seat or socketin-the registered apertures g and 0 in the wheel and shaft respectively,as shown in Figs. 2 and 3. The spring G is connected to the outer sideof the wheel and rests over the lateral projection 70 of the detent.

By virtue of the construction described, it will be seen that when thedetents F are placed in the positions shown in Fig. l, the wheels willbe held against turning on the floor or other surface, and the shaft Awill be left free to turn in the wheels. In such positions of thedetents F their sharp points p will engage the floor to better enablethe detents to serve the purpose ascribed. Then when the clips Dareremoved from the roll of material and the presented end of the materialis grasped, any desired length of the material may be drawn from theroll. It will also be here understood that while the wheels are securedagainst turning in the manner described, a crank may be applied to theangular end a of the shaft, and said shaft turned to rewind thementioned length of material on the roll.

When it is desired to roll the device with the material thereon, theclips D are placed on the roll of material as shown in Fig. 1, and thedetents are pressed laterally outward to disengage them from the teeth72/, whereupon the springs G will press or move the detents from thepositions shown in Fig. 1 to the positions shown in Figs. 2 and 3. Inthe latter positions the detents will obviously lock the wheels to theshaft and at the same time will not interfere with the travel of thewheels over the floor or other surface.

While I have shown and described one form of my invention, it is to beunderstood that I am not limited to the details or the form or relativearrangement of parts disclosed, but that extensive modifications may bemade therein without departing from the spirit thereof.

Having described my invention, what I claim and desire to secure byLetters-Patent, is:

1. A device for the purpose described, comprising a shaft having an endportion, of angular form in cross-section, and also havingcircumferential grooves near its ends and apertures adjacent saidgrooves, clamping plates spaced apart and connected by screws to theshaft, wheels loosely mounted on the shaft and having beveled teeth andalso having apertures arranged to register with those of the shaft andfurther having projections disposed and movable in the circumferentialgrooves of the shaft,

spring-pressed detents pivoted to the wheels and having means forengaging the teeth thereof, in one position of the detents, and

also having means for entering the registered apertures of wheels andshaft, in the other position of the detents, and a clip for embracingand holding a roll of material on the shaft.

2. A device for the purpose described, comprising a shaft, wheelsmovable about the shaft and held against movement lengthwise thereof andhaving teeth, and spring-pressed detents movable on the wheels andhaving means for engaging the teeth thereof and extending beyond theperipheries of the wheels, in one position of the detents, and alsohaving means for fixing the shaft to the wheels, in the other positionof the detents.

3. A device for the purpose described, comprising a shaft havingcircumferential grooves near its ends and apertures adjacent saidgrooves, wheels loosely mounted on the shaft and having beveled teethand also having apertures arranged to register with those of the shaftand further having projections disposed and movable in thecircumferential grooves of the shaft, and spring-pressed detents pivotedto the wheels and having means for engaging the teeth thereof andextending beyond the peripheries of the wheels, in one position of thedetents, and also having means for entering the registered apertures ofwheels and shaft, in the other position of the detents.

4. A device for the purpose described, comprising a shaft having an endportion, of angular form in cross-section, and also havingcircumferential grooves near its ends and apertures adjacent saidgrooves, wheels loosely mounted on the shaft and having aperturesarranged to register with those of v the shaft and projections disposedand movable in the circumferential grooves of the shaft and also havingrims provided at their outer edges with segmental racks the teeth ofwlrich are beveled, and springpressed detents pivoted to the outer sidesof the wheels and adapted in one position to engage the teeth of theracks and extend beyond the rim of the wheels and having means, in theother position of the detents, for entering the registered apertures ofthe wheels and shaft and fixing the shaft to the wheels.

5. A device for the purpose described, comprising a shaft, means movableabout the shaft and held against movement lengthwise thereof and adaptedto travel over a floor or other surface, and detents carried by thewheels for extending beyond the peripheries of the wheels and engagingthe floor, in one position of the detents, and for fastening the wheelsto the shaft and lying within the perimeters of the wheels, in the otherposition of the detents.

6. In a device of the character described,

the combination of a shaft, Wheels loose set my hand in presence of twosubscribing thereonf, and adjustable means for engitginoig, Witnesses.the sur ace on which the Wheels are p ace in one position, and forfixing the Wheels JULIUS ARNSDORFF' 5 to the shaft and leaving theWheels free to Witnesses:

turn on the surface, in another position. JOHN G. KRATTI,

In testimony whereof I have hereunto CHARLES H. PETERS.

